Files
LuminolMC/patches/server/0064-Rewrite-linear-region-flush-task-dispatching.patch
ShintoKosei 49be774d83 rebase
2024-04-13 19:03:09 +08:00

121 lines
4.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: MrHua269 <novau233@163.com>
Date: Fri, 12 Apr 2024 13:48:09 +0000
Subject: [PATCH] Rewrite linear region flush task dispatching
diff --git a/src/main/java/dev/kaiijumc/kaiiju/region/LinearRegionFile.java b/src/main/java/dev/kaiijumc/kaiiju/region/LinearRegionFile.java
index e40989889f3821bb7484fc0bae5d94b033013904..dc5a5f42c9ca7a50295c18424722568a3ad33fa5 100644
--- a/src/main/java/dev/kaiijumc/kaiiju/region/LinearRegionFile.java
+++ b/src/main/java/dev/kaiijumc/kaiiju/region/LinearRegionFile.java
@@ -126,7 +126,7 @@ public class LinearRegionFile implements AbstractRegionFile, AutoCloseable {
}
public void flush() throws IOException {
- if (isMarkedToSave()) flushWrapper(); // sync
+ if (getAndResetSaveMarker()) flushWrapper(); // sync
}
private void markToSave() {
@@ -134,10 +134,18 @@ public class LinearRegionFile implements AbstractRegionFile, AutoCloseable {
markedToSave.set(true);
}
- public boolean isMarkedToSave() {
+ public boolean getAndResetSaveMarker() {
return markedToSave.getAndSet(false);
}
+ public boolean isMarkedToSave(){
+ return this.markedToSave.get();
+ }
+
+ public void resetSaveMarker(){
+ this.markedToSave.set(false);
+ }
+
public void flushWrapper() {
try {
save();
diff --git a/src/main/java/dev/kaiijumc/kaiiju/region/LinearRegionFileFlusher.java b/src/main/java/dev/kaiijumc/kaiiju/region/LinearRegionFileFlusher.java
index f06d7767c79e465f999b2032086cc224de95152a..65435eb666b2e1cabffc145e016faa5e3b373464 100644
--- a/src/main/java/dev/kaiijumc/kaiiju/region/LinearRegionFileFlusher.java
+++ b/src/main/java/dev/kaiijumc/kaiiju/region/LinearRegionFileFlusher.java
@@ -1,17 +1,14 @@
package dev.kaiijumc.kaiiju.region;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
-import java.util.Queue;
+
+import java.util.Set;
import java.util.concurrent.*;
import org.bukkit.Bukkit;
public class LinearRegionFileFlusher {
- private final Queue<LinearRegionFile> savingQueue = new LinkedBlockingQueue<>();
- private final ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor(
- new ThreadFactoryBuilder()
- .setNameFormat("linear-flush-scheduler")
- .build()
- );
+ private final Set<LinearRegionFile> pendingSaving = ConcurrentHashMap.newKeySet();
+
private final ExecutorService executor = Executors.newFixedThreadPool(
me.earthme.luminol.config.modules.misc.RegionFormatConfig.linearFlushThreads,
new ThreadFactoryBuilder()
@@ -19,26 +16,42 @@ public class LinearRegionFileFlusher {
.build()
);
+ private final Executor delayedFlusher = CompletableFuture.delayedExecutor(
+ me.earthme.luminol.config.modules.misc.RegionFormatConfig.linearFlushFrequency,
+ TimeUnit.SECONDS,
+ executor
+ );
+
public LinearRegionFileFlusher() {
Bukkit.getLogger().info("Using " + me.earthme.luminol.config.modules.misc.RegionFormatConfig.linearFlushThreads + " threads for linear region flushing.");
- scheduler.scheduleAtFixedRate(this::pollAndFlush, 0L, me.earthme.luminol.config.modules.misc.RegionFormatConfig.linearFlushFrequency, TimeUnit.SECONDS);
}
public void scheduleSave(LinearRegionFile regionFile) {
- if (savingQueue.contains(regionFile)) return;
- savingQueue.add(regionFile);
- }
-
- private void pollAndFlush() {
- while (!savingQueue.isEmpty()) {
- LinearRegionFile regionFile = savingQueue.poll();
- if (!regionFile.closed && regionFile.isMarkedToSave())
- executor.execute(regionFile::flushWrapper);
+ if (this.pendingSaving.contains(regionFile) || !regionFile.isMarkedToSave()){
+ return;
}
+
+ this.pendingSaving.add(regionFile);
+ this.delayedFlusher.execute(()->{
+ try {
+ if (!regionFile.closed && regionFile.isMarkedToSave()){
+ regionFile.flushWrapper();
+ }
+ }finally {
+ regionFile.resetSaveMarker();
+ this.pendingSaving.remove(regionFile);
+ }
+ });
}
public void shutdown() {
- executor.shutdown();
- scheduler.shutdown();
+ this.executor.shutdown();
+ for (;;) {
+ try {
+ if (this.executor.awaitTermination(5_00,TimeUnit.MILLISECONDS)) break;
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ }
}
}